lab 1.2.5 verifying rip v2 configuration – 2500 seriessaturn.glyndwr.ac.uk/cisco/ccna/semester...

41 - 577 CCNA 3: Switching Basics and Intermediate Routing v 3.1 - Lab 1.2.5 Copyright 2003, Cisco Systems, Inc.

Lab 1.2.5 Verifying RIP v2 Configuration – 2500 Series

Objective • Configure RIP v1 and v2 on routers.

• Use show commands to verify RIP v2 operation.

Background/Preparation Cable a network similar to the one shown in the diagram. Any router that meets the interface requirements displayed on the above diagram may be used. For example, router series 800, 1600, 1700, 2500, and 2600 or any such combination can be used. Please refer to the chart at the end of the lab to correctly identify the interface identifiers to be used based on the equipment in the lab. The configuration output used in this lab is produced from 1721 series routers. Any other router used may produce slightly different output. Perform the following steps on each router unless specifically instructed otherwise.

Start a HyperTerminal session as performed in the Establishing a HyperTerminal session lab.

Note: Go to the erase and reload instructions at the end of this lab. Perform those steps on all routers in this lab assignment before continuing.

Step 1 Configure the routers On the routers, configure the hostnames as well as the console, virtual terminal, and enable secret passwords. Next configure the serial interface IP address and clock rate and the Fast Ethernet interface IP address. Finally configure IP host names. If there are problems performing the basic configuration, refer to the Review of Basic Configuration including RIP lab. Optional interface descriptions and message of the day banners may also be configured. Be sure to save the configurations just created.


Router 1 Router>enable Router#configure terminal Router(config)#hostname GAD GAD(config)#enable secret class GAD(config)#line console 0 GAD(config-line)#password cisco GAD(config-line)#login GAD(config-line)#line vty 0 4 GAD(config-line)#password cisco GAD(config-line)#login GAD(config-line)#exit GAD(config)#interface serial 0 GAD(config-if)#ip address 172.17.1.1 255.255.0.0 GAD(config-if)#clock rate 64000 GAD(config-if)#no shutdown GAD(config-if)#exit GAD(config)#interface ethernet 0 GAD(config-if)#ip address 172.16.0.1 255.255.0.0 GAD(config-if)#no shutdown GAD(config-if)#exit GAD(config)#ip host BMH 172.18.0.1 172.17.1.2

Router 2 Router>enable Router#configure terminal Router(config)#hostname BHM BHM(config)#enable secret class BHM(config)#line console 0 BHM(config-line)#password cisco BHM(config-line)#login BHM(config-line)#line vty 0 4 BHM(config-line)#password cisco BHM(config-line)#login BHM(config-line)#exit BHM(config)#interface serial 0 BHM(config-if)#ip address 172.17.1.2 255.255.0.0 BHM(config-if)#no shutdown BHM(config-if)#exit BHM(config)#interface ethernet 0 BHM(config-if)#ip address 172.18.0.1 255.255.0.0 BHM(config-if)#no shutdown BHM(config-if)#exit BHM(config)#ip host GAD 172.16.0.1 172.17.1.1

Step 2 Configure the routing protocol on the GAD router Go to the correct command mode and configure RIP routing on the GAD router according to the chart. GAD(config)#router rip GAD(config-router)#network 172.16.0.0 GAD(config-router)#network 172.17.0.0 GAD(config-router)#exit GAD(config)#exit


Step 3 Save the GAD router configuration Any time that changes are correctly made to the running configuration, they should be saved to the startup configuration. Otherwise, if the router is reloaded or power cycled, the changes that are not saved in the startup configuration will be lost. GAD#copy running-config startup-config Destination filename [startup-config]?[Enter]

Step 4 Configure the routing protocol on the BHM router Go to the correct command mode and configure RIP routing on the BHM router according to the chart. BHM(config)#router rip BHM(config-router)#network 172.18.0.0 BHM(config-router)#network 172.17.0.0 BHM(config-router)#exit BHM(config)#exit

Step 5 Save the BHM router configuration BHM# copy running-config startup-config Destination filename [startup-config]?[Enter]

Step 6 Configure the hosts with the proper IP address, subnet mask, and default gateway Host connected to router GAD IP Address: 172.16.0.2 Subnet mask: 255.255.0.0 Default gateway: 172.16.0.1

Host connected to router BHM IP Address: 172.18.0.2 Subnet mask: 255.255.0.0 Default gateway: 172.18.0.1

Step 7 Verify that the internetwork is functioning by pinging the FastEthernet interface of the other router

a. From the host attached to the GAD, ping the other host attached to the BHM router. Was the ping successful? Yes

b. From the host attached to the BHM, ping the other host attached to the GAD router. Was the ping successful? Yes

b. If the answer is no for either question, troubleshoot the router configurations to find the error. Then do the pings again until the answer to both questions is yes.

Step 8 Show the routing tables for each router a. From the enable privileged EXEC mode, examine the routing table entries using command show

ip route command on each router.

GAD#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B –

BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2


E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate

default U - per-user static route, o - ODR, P - periodic downloaded

static route T - traffic engineered route

Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0 C 172.16.0.0/16 is directly connected, Ethernet0 R 172.18.0.0/16 [120/1] via 172.17.0.2, Serial0 BHM#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B –

BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS

inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route

Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0 C 172.18.0.0/16 is directly connected, Ethernet0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:27, Serial0

b. What are the entries in the GAD routing table?

C 172.17.0.0/16 is directly connected, Serial0 C 172.16.0.0/16 is directly connected, Ethernet0 R 172.18.0.0/16 [120/1] via 172.17.0.2, Serial0

c. What are the entries in the BHM routing table?

C 172.17.0.0/16 is directly connected, Serial0 C 172.18.0.0/16 is directly connected, Ethernet0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:27, Serial0

Step 9 Enable RIP v2 routing Enable version 2 of the RIP routing protocol on both of the routers, GAD and BHM. GAD(config)#router rip GAD(config-router)#version 2 GAD(config-router)#exit GAD(config)#exit BHM(config)#router rip BHM(config-router)#version 2 BHM(config-router)#exit BHM(config)#exit

Step 10 Show the routing tables a. Show the routing tables on both routers again.

GAD#show ip route


Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B – BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate



Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0 C 172.16.0.0/16 is directly connected, Ethernet0 R 172.18.0.0/16 [120/1] via 172.17.0.2, Serial0 BHM#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B –



Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0 C 172.18.0.0/16 is directly connected, Ethernet0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:45, Serial0

a. b. Have they changed now that RIP v2 is now being used instead of RIP v1? No

c. What is the difference between RIP v2 and RIP v1? RIPv2 supports VLSM and RIPv1 does not

c. What must be done in order to see a difference between RIP v2 and RIP v1?

Change the subnet mask of the interfaces

Step 11 Change the Ethernet IP subnet mask on the GAD router a. Change the subnet mask on router GAD from a default Class B mask (255.255.0.0) to a default

Class C mask (255.255.255.0). Use the same IP address.

GAD(config)#interface ethernet 0 GAD(config-if)#ip address 172.16.0.1 255.255.255.0 GAD(config-if)#exit

b. How does this change affect the address for the Ethernet interface?

The IP address of the interface remains the same, but it belongs to a smaller subnet.

Step 12 Show the GAD routing table a. Show the GAD routing table.


BGP


D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate



Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0 172.16.0.0/24 is subnetted, 1 subnets C 172.16.0.0 is directly connected, Ethernet0 R 172.18.0.0/16 [120/1] via 172.17.1.2, Serial0

b. Has the output changed with the addition of a subnetted IP address? Yes

a. How has it changed? There is a new route to the subnet 172.16.0.0/24.

Step 13 Show the BHM routing table a. Show the BHM routing table.

BHM#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B –



Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:24, Serial0 172.18.0.0/24 is subnetted, 1 subnets C 172.18.0.0 is directly connected, Ethernet0


Step 14 Change the network addressing scheme Change the addressing scheme of the network to a single Class B network with a 255.255.255.0 (default Class C) mask.

a. On the BHM router:

BHM(config)#interface serial 0 BHM(config-if)#ip address 172.16.1.2 255.255.255.0 BHM(config-if)#exit BHM(config)#interface ethernet 0 BHM(config-if)#ip address 172.16.3.1 255.255.255.0 BHM(config-if)#exit BHM(config)#exit

BHM(config)#router rip BHM(config-router)#no network 172.18.0.0 BHM(config-router)#no network 172.17.0.0


BHM(config-router)#network 172.16.1.0 BHM(config-router)#network 172.16.3.0 BHM(config-router)#exit

b. On the GAD router:

GAD(config)#interface serial 0 GAD(config-if)#ip address 172.16.1.1 255.255.255.0 GAD(config-if)#exit GAD(config)#router rip GAD(config-router)#no network 172.17.0.0 GAD(config-router)#network 172.16.1.0 GAD(config-router)#exit

Step 15 Show the routing table a. Show the GAD routing table.


BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate



Gateway of last resort is not set 172.16.0.0/24 is subnetted, 3 subnets C 172.16.0.0 is directly connected, Ethernet0 C 172.16.1.0 is directly connected, Serial0 R 172.16.3.0 [120/1] via 172.16.1.2, Serial0

b. Has the output changed with the addition of subnetted IP addresses? Yes

a. How has it changed?

There are 2 subnets, two of which are directly connected, and the subnet 172.16.3.0 is learned through RIP via interface Serial 0.

Step 16 Show the routing table a. Show the BHM routing table.




Gateway of last resort is not set


172.16.0.0/24 is subnetted, 3 subnets R 172.16.0.0 [120/1] via 172.16.1.1, 00:00:05, Serial0 C 172.16.1.0 is directly connected, Serial0 C 172.16.3.0 is directly connected, Ethernet0


Step 17 Change the host configurations Change the host configuration to reflect the new IP addressing scheme of the network

Host connected to router GAD IP Address: 172.16.0.2 Subnet mask: 255.255.0.0 Default gateway: 172.16.0.1


Step 18 Ping all of the interfaces on the network from each host a. Were all of the interfaces still able to be pinged? Yes

b. If not, troubleshoot the network and ping again.

Step 19 Use show ip route to see different routes by type a. Enter show ip route connected on the GAD router.

b. What networks are displayed?

172.16.0.0/24 is subnetted, 3 subnets C 172.16.0.0 is directly connected, Ethernet0 C 172.16.1.0 is directly connected, Serial0

c. What interface is directly connected?

C 172.16.0.0 is directly connected, Ethernet0 C 172.16.1.0 is directly connected, Serial0

d. Enter show ip route rip

172.16.0.0/24 is subnetted, 3 subnets R 172.16.3.0 [120/1] via 172.16.1.2, Serial0

e. List the routes listed in the routing table?

R 172.16.3.0 [120/1] via 172.16.1.2, Serial0

f. What is the administrative distance? 120

g. Enter show ip route connected on the BHM router.

h. What networks are displayed?

172.16.0.0/24 is subnetted, 3 subnets C 172.16.1.0 is directly connected, Serial0 C 172.16.3.0 is directly connected, Ethernet0

i. What interface is directly connected?

C 172.16.1.0 is directly connected, Serial0 C 172.16.3.0 is directly connected, Ethernet0

j. Enter show ip route rip


k. List the routes listed in the routing table?

172.16.0.0/24 is subnetted, 3 subnets R 172.16.0.0 [120/1] via 172.16.1.1, 00:00:15, Serial0

Step 20 Use the show IP protocol command a. Enter show ip protocol on the GAD router.

Routing Protocol is "rip" Sending updates every 30 seconds, next due in 1 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is Incoming update filter list for all interfaces is Redistributing: rip Default version control: send version 2, receive version 2

Interface Send Recv Triggered RIP Key-chain Ethernet0 2 2 Serial0 2 2

Routing for Networks: 172.16.0.0

Routing Information Sources: Gateway Distance Last Update 172.17.1.2 120 00:13:21 172.16.1.2 120 00:00:24 172.17.0.2 120 00:35:08

Distance: (default is 120)

b. When will the routes be flushed? 240 seconds

c. What is the default distance listed for RIP? 120 seconds


Step 21 Remove the version 2 option Use the no version command to return the router to the default RIP configuration.

GAD(config)#router rip GAD(config-router)#no version 2 GAD(config-router)#exit BHM(config)#router rip BHM(config-router)#no version 2 BHM(config-router)#exit






Gateway of last resort is not set 172.16.0.0/24 is subnetted, 3 subnets C 172.16.0.0 is directly connected, Ethernet0 C 172.16.1.0 is directly connected, Serial0 R 172.16.3.0 [120/1] via 172.16.1.2, Serial0

b. Has the output changed now that version 2 of RIP was removed? No





Gateway of last resort is not set 172.16.0.0/24 is subnetted, 3 subnets R 172.16.0.0 [120/1] via 172.16.1.1, 00:00:01, Serial0 C 172.16.1.0 is directly connected, Serial0 C 172.16.3.0 is directly connected, Ethernet0



Once the previous steps are completed, log off by typing exit, and turn the router off. Then remove and store the cables and adapter.


Erasing and reloading the router Enter into the privileged EXEC mode by typing enable.

Router>enable

If prompted for a password, enter class. If that does not work, ask the instructor for assistance.

At the privileged EXEC mode, enter the command erase startup-config.

Router#erase startup-config

The responding line prompt will be:

Erasing the nvram filesystem will remove all files! Continue? [confirm]

Press Enter to confirm.

The response should be:

Erase of nvram: complete

Now at the privileged EXEC mode, enter the command reload.

Router#reload


System configuration has been modified. Save? [yes/no]:

Type n and then press Enter.


Proceed with reload? [confirm]


In the first line of the response will be:

Reload requested by console.

After the router has reloaded the line prompt will be:

Would you like to enter the initial configuration dialog? [yes/no]:



Press RETURN to get started!

Press Enter.

Now the router is ready for the assigned lab to be performed.


Router Interface Summary

Router Model Ethernet Interface #1

Ethernet Interface #2

Serial Interface #1

Serial Interface #2

800 (806) Ethernet 0 (E0) Ethernet 1 (E1) 1600 Ethernet 0 (E0) Ethernet 1 (E1) Serial 0 (S0) Serial 1 (S1) 1700 FastEthernet 0 (FA0) FastEthernet 1 (FA1) Serial 0 (S0) Serial 1 (S1) 2500 Ethernet 0 (E0) Ethernet 1 (E1) Serial 0 (S0) Serial 1 (S1)

2600 FastEthernet 0/0 (FA0/0) FastEthernet 0/1 (FA0/1) Serial 0/0 (S0/0) Serial 0/1 (S0/1)

In order to find out exactly how the router is configured, look at the interfaces. This will identify what type and how many interfaces the router has. There is no way to effectively list all of the combinations of configurations for each router class. What is provided are the identifiers for the possible combinations of interfaces in the device. This interface chart does not include any other type of interface even though a specific router may contain one. An example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviation that can be used in IOS command to represent the interface.


Lab 1.2.5 Verifying RIP v2 Configuration – 2600 Series

Objective • Configure RIP v1 and v2 on routers.

• Use show commands to verify RIP v2 operation.

Background/Preparation Cable a network similar to the one shown in the diagram. Any router that meets the interface requirements displayed on the above diagram may be used. For example, router series 800, 1600, 1700, 2500, and 2600 or any such combination can be used. Please refer to the chart at the end of the lab to correctly identify the interface identifiers to be used based on the equipment in the lab. The configuration output used in this lab is produced from 1721 series routers. Any other router used may produce slightly different output. Perform the following steps on each router unless specifically instructed otherwise.

Start a HyperTerminal session as performed in the Establishing a HyperTerminal session lab.

Note: Go to the erase and reload instructions at the end of this lab. Perform those steps on all routers in this lab assignment before continuing.

Step 1 Configure the routers On the routers, configure the hostnames as well as the console, virtual terminal, and enable secret passwords. Next configure the serial interface IP address and clock rate and the Fast Ethernet interface IP address. Finally configure IP host names. If there are problems performing the basic configuration, refer to the Review of Basic Configuration including RIP lab. Optional interface descriptions and message of the day banners may also be configured. Be sure to save the configurations just created.

Router 1 Router>enable Router#configure terminal


Router(config)#hostname GAD GAD(config)#enable secret class GAD(config)#line console 0 GAD(config-line)#password cisco GAD(config-line)#login GAD(config-line)#line vty 0 4 GAD(config-line)#password cisco GAD(config-line)#login GAD(config-line)#exit GAD(config)#interface serial 0/0 GAD(config-if)#ip address 172.17.1.1 255.255.0.0 GAD(config-if)#clock rate 64000 GAD(config-if)#no shutdown GAD(config-if)#exit GAD(config)#interface fastEthernet 0/0 GAD(config-if)#ip address 172.16.0.1 255.255.0.0 GAD(config-if)#no shutdown GAD(config-if)#exit GAD(config)#ip host BMH 172.18.0.1 172.17.1.2

Router 2 Router>enable Router#configure terminal Router(config)#hostname BHM BHM(config)#enable secret class BHM(config)#line console 0 BHM(config-line)#password cisco BHM(config-line)#login BHM(config-line)#line vty 0 4 BHM(config-line)#password cisco BHM(config-line)#login BHM(config-line)#exit BHM(config)#interface serial 0/0 BHM(config-if)#ip address 172.17.1.2 255.255.0.0 BHM(config-if)#no shutdown BHM(config-if)#exit BHM(config)#interface fastEthernet 0/0 BHM(config-if)#ip address 172.18.0.1 255.255.0.0 BHM(config-if)#no shutdown BHM(config-if)#exit BHM(config)#ip host GAD 172.16.0.1 172.17.1.1

Step 2 Configure the routing protocol on the GAD router Go to the correct command mode and configure RIP routing on the GAD router according to the chart. GAD(config)#router rip GAD(config-router)#network 172.16.0.0 GAD(config-router)#network 172.17.0.0 GAD(config-router)#exit GAD(config)#exit

Step 3 Save the GAD router configuration


Any time that changes are correctly made to the running configuration, they should be saved to the startup configuration. Otherwise, if the router is reloaded or power cycled, the changes that are not saved in the startup configuration will be lost. GAD#copy running-config startup-config Destination filename [startup-config]?[Enter]

Step 4 Configure the routing protocol on the BHM router Go to the correct command mode and configure RIP routing on the BHM router according to the chart. BHM(config)#router rip BHM(config-router)#network 172.18.0.0 BHM(config-router)#network 172.17.0.0 BHM(config-router)#exit BHM(config)#exit

Step 5 Save the BHM router configuration BHM# copy running-config startup-config Destination filename [startup-config]?[Enter]

Step 6 Configure the hosts with the proper IP address, subnet mask, and default gateway Host connected to router GAD IP Address: 172.16.0.2 Subnet mask: 255.255.0.0 Default gateway: 172.16.0.1


Step 7 Verify that the internetwork is functioning by pinging the FastEthernet interface of the other router

a. From the host attached to the GAD, ping the other host attached to the BHM router. Was the ping successful? Yes

b. From the host attached to the BHM, ping the other host attached to the GAD router. Was the ping successful? Yes

c. If the answer is no for either question, troubleshoot the router configurations to find the error. Then do the pings again until the answer to both questions is yes.

Step 8 Show the routing tables for each router a. From the enable privileged EXEC mode, examine the routing table entries using command

show ip route command on each router.






Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0/0 C 172.16.0.0/16 is directly connected, fastEthernet0/0 R 172.18.0.0/16 [120/1] via 172.17.0.2, Serial0/0 BHM#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B –



Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0/0 C 172.18.0.0/16 is directly connected, fastEthernet0/0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:27, Serial0/0

b. What are the entries in the GAD routing table?

C 172.17.0.0/16 is directly connected, Serial0/0 C 172.16.0.0/16 is directly connected, fastEthernet0/0 R 172.18.0.0/16 [120/1] via 172.17.0.2, Serial0/0

c. What are the entries in the BHM routing table?

C 172.17.0.0/16 is directly connected, Serial0/0 C 172.18.0.0/16 is directly connected, fastEthernet0/0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:27, Serial0/0

Step 9 Enable RIP v2 routing Enable version 2 of the RIP routing protocol on both of the routers, GAD and BHM. GAD(config)#router rip GAD(config-router)#version 2 GAD(config-router)#exit GAD(config)#exit BHM(config)#router rip BHM(config-router)#version 2 BHM(config-router)#exit BHM(config)#exit

Step 10 Show the routing tables a. Show the routing tables on both routers again.






Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0/0 C 172.16.0.0/16 is directly connected, fastEthernet0/0 R 172.18.0.0/16 [120/1] via 172.17.0.2, Serial0/0 BHM#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B –



Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0/0 C 172.18.0.0/16 is directly connected, fastEthernet0/0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:45, Serial0/0

b. Have they changed now that RIP v2 is now being used instead of RIP v1? No

c. What is the difference between RIP v2 and RIP v1? RIPv2 supports VLSM and RIPv1 does not

d. What must be done in order to see a difference between RIP v2 and RIP v1?

Change the subnet mask of the interfaces.

Step 11 Change the Fast Ethernet IP subnet mask on the GAD router a. Change the subnet mask on router GAD from a default Class B mask (255.255.0.0) to a default

Class C mask (255.255.255.0). Use the same IP address.

GAD(config)#interface fastethernet 0 GAD(config-if)#ip address 172.16.0.1 255.255.255.0 GAD(config-if)#exit

b. How does this change affect the address for the FastEthernet interface?

The IP address of the interface remains the same, but it belongs to a smaller subnet.

Step 12 Show the GAD routing table a. Show the GAD routing table.




static route


T - traffic engineered route Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0/0 172.16.0.0/24 is subnetted, 1 subnets C 172.16.0.0 is directly connected, FastEthernet0/0 R 172.18.0.0/16 [120/1] via 172.17.1.2, Serial0/0


c. How has it changed? There is a new route to the subnet 172.16.0.0/24.

Step 13 Show the BHM routing table a. Show the BHM routing table.




Gateway of last resort is not set C 172.17.0.0/16 is directly connected, Serial0/0 R 172.16.0.0/16 [120/1] via 172.17.1.1, 00:00:24, Serial0/0 172.18.0.0/24 is subnetted, 1 subnets C 172.18.0.0 is directly connected, FastEthernet0/0


Step 14 Change the network addressing scheme Change the addressing scheme of the network to a single Class B network with a 255.255.255.0 (default Class C) mask.

a. On the BHM router:

BHM(config)#interface serial 0/0 BHM(config-if)#ip address 172.16.1.2 255.255.255.0 BHM(config-if)#exit BHM(config)#interface fastethernet 0/0 BHM(config-if)#ip address 172.16.3.1 255.255.255.0 BHM(config-if)#exit BHM(config)#exit

BHM(config)#router rip BHM(config-router)#no network 172.18.0.0 BHM(config-router)#no network 172.17.0.0 BHM(config-router)#network 172.16.1.0 BHM(config-router)#network 172.16.3.0 BHM(config-router)#exit


b. On the GAD router:

GAD(config)#interface serial 0/0 GAD(config-if)#ip address 172.16.1.1 255.255.255.0 GAD(config-if)#exit

GAD(config)#router rip GAD(config-router)#no network 172.17.0.0 GAD(config-router)#network 172.16.1.0 GAD(config-router)#exit






Gateway of last resort is not set 172.16.0.0/24 is subnetted, 3 subnets C 172.16.0.0 is directly connected, FastEthernet0/0 C 172.16.1.0 is directly connected, Serial0/0 R 172.16.3.0 [120/1] via 172.16.1.2, Serial0/0

b. Has the output changed with the addition of subnetted IP addresses? Yes

c. How has it changed?

There are 2 subnets, two of which are directly connected, and the subnet 172.16.3.0 is learned through RIP via interface Serial 0/0.





Gateway of last resort is not set 172.16.0.0/24 is subnetted, 3 subnets R 172.16.0.0 [120/1] via 172.16.1.1, 00:00:05, Serial0/0 C 172.16.1.0 is directly connected, Serial0/0


C 172.16.3.0 is directly connected, FastEthernet0/0


Step 17 Change the host configurations Change the host configuration to reflect the new IP addressing scheme of the network

Host connected to router GAD IP Address: 172.16.0.2 Subnet mask: 255.255.0.0 Default gateway: 172.16.0.1


Step 18 Ping all of the interfaces on the network from each host a. Were all of the interfaces still able to be pinged? Yes

b. If not, troubleshoot the network and ping again.

Step 19 Use show ip route to see different routes by type a. Enter show ip route connected on the GAD router.

b. What networks are displayed?

172.16.0.0/24 is subnetted, 3 subnets C 172.16.0.0 is directly connected, FastEthernet0/0 C 172.16.1.0 is directly connected, Serial0/0

c. What interface is directly connected?

C 172.16.0.0 is directly connected, FastEthernet0/0 C 172.16.1.0 is directly connected, Serial0/0

d. Enter show ip route rip

172.16.0.0/24 is subnetted, 3 subnets R 172.16.3.0 [120/1] via 172.16.1.2, Serial0/0

e. List the routes listed in the routing table?

172.16.3.0 [120/1] via 172.16.1.2, Serial0/0

f. What is the administrative distance? 120

g. Enter show ip route connected on the BHM router.

h. What networks are displayed?

172.16.0.0/24 is subnetted, 3 subnets C 172.16.1.0 is directly connected, Serial0/0 C 172.16.3.0 is directly connected, FastEthernet0/0

i. What interface is directly connected?

C 172.16.1.0 is directly connected, Serial0/0

C 172.16.3.0 is directly connected, FastEthernet0/0

j. Enter show ip route rip

k. List the routes listed in the routing table?

172.16.0.0/24 is subnetted, 3 subnets R 172.16.0.0 [120/1] via 172.16.1.1, 00:00:15, Serial0/0


Step 20 Use the show IP protocol command a. Enter show ip protocol on the GAD router.

Routing Protocol is "rip" Sending updates every 30 seconds, next due in 1 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is Incoming update filter list for all interfaces is Redistributing: rip Default version control: send version 2, receive version 2

Interface Send Recv Triggered RIP Key-chain FastEthernet0/0 2 2 Serial0/0 2 2

Routing for Networks: 172.16.0.0

Routing Information Sources: Gateway Distance Last Update 172.17.1.2 120 00:13:21 172.16.1.2 120 00:00:24 172.17.0.2 120 00:35:08

Distance: (default is 120)

b. When will the routes be flushed? 240 seconds

c. What is the default distance listed for RIP? 120 seconds

Step 21 Remove the version 2 option Use the no version command to return the router to the default RIP configuration.

GAD(config)#router rip GAD(config-router)#no version 2 GAD(config-router)#exit BHM(config)#router rip BHM(config-router)#no version 2 BHM(config-router)#exit






Gateway of last resort is not set 172.16.0.0/24 is subnetted, 3 subnets C 172.16.0.0 is directly connected, FastEthernet0/0 C 172.16.1.0 is directly connected, Serial0/0 R 172.16.3.0 [120/1] via 172.16.1.2, Serial0/0







Gateway of last resort is not set 172.16.0.0/24 is subnetted, 3 subnets R 172.16.0.0 [120/1] via 172.16.1.1, 00:00:01, Serial0/0 C 172.16.1.0 is directly connected, Serial0/0 C 172.16.3.0 is directly connected, FastEthernet0/0


Once the previous steps are completed, log off by typing exit, and turn the router off. Then remove and store the cables and adapter.


Erasing and reloading the router Enter into the privileged EXEC mode by typing enable.

Router>enable

If prompted for a password, enter class. If that does not work, ask the instructor for assistance.

At the privileged EXEC mode, enter the command erase startup-config.

Router#erase startup-config


Erasing the nvram filesystem will remove all files! Continue? [confirm]


The response should be:

Erase of nvram: complete

Now at the privileged EXEC mode, enter the command reload.

Router#reload


System configuration has been modified. Save? [yes/no]:



Proceed with reload? [confirm]


In the first line of the response will be:

Reload requested by console.

After the router has reloaded the line prompt will be:

Would you like to enter the initial configuration dialog? [yes/no]:



Press RETURN to get started!

Press Enter.

Now the router is ready for the assigned lab to be performed.


Router Interface Summary

Router Model Ethernet Interface #1

Ethernet Interface #2

Serial Interface #1

Serial Interface #2

800 (806) Ethernet 0 (E0) Ethernet 1 (E1) 1600 Ethernet 0 (E0) Ethernet 1 (E1) Serial 0 (S0) Serial 1 (S1) 1700 FastEthernet 0 (FA0) FastEthernet 1 (FA1) Serial 0 (S0) Serial 1 (S1) 2500 Ethernet 0 (E0) Ethernet 1 (E1) Serial 0 (S0) Serial 1 (S1)

2600 FastEthernet 0/0 (FA0/0) FastEthernet 0/1 (FA0/1) Serial 0/0 (S0/0) Serial 0/1 (S0/1)

In order to find out exactly how the router is configured, look at the interfaces. This will identify what type and how many interfaces the router has. There is no way to effectively list all of the combinations of configurations for each router class. What is provided are the identifiers for the possible combinations of interfaces in the device. This interface chart does not include any other type of interface even though a specific router may contain one. An example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviation that can be used in IOS command to represent the interface.

lab 1.2.5 verifying rip v2 configuration – 2500 seriessaturn.glyndwr.ac.uk/cisco/ccna/semester...

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